Decrypt or mount disk

You can work with actual dist attached to the computer (e.g. via USB interface), with disk images (in RAW/DD or EnCase .E01 formats), or with the disk containers (speaking of PGP and TrueCrypt). Select the type of the date first:

Until the disk container is selected, the program parses it, and shows the list of partitions (if there is more than one), detecting the encryption:

Decryption or mounting (the latter is implemented using ImDisk virtual disk driver installed with EFDD; typically, you don't need to change any settings.